Home / 1,148,052.86-1,721,513.40-389,617.66

Finding the Fourth Proportional to 1,148,052.86, 1,721,513.40 and 389,617.66

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Solution

The fourth proportional to 1,148,052.86, 1,721,513.40 and 389,617.66 is: 584,234.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,148,052.86 : 1,721,513.40 = 389,617.66 : x
  2. Step 2: Convert to fraction form
    1,148,052.86/1,721,513.40 = 389,617.66/x
  3. Step 3: Cross multiply
    1,148,052.86x = 1,721,513.40 × 389,617.66
  4. Step 4: Simplify right side
    1,148,052.86x = 670,732,025,449.07
  5. Step 5: Solve for x
    x = 670,732,025,449.07/1,148,052.86
  6. Step 6: Final answer
    x = 584,234.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.